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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

第10卷    第6期    总第56期    2013年12月

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文章编号:1672-7029( 2013) 06-0059-05
地表注浆对隧道邻近建筑物变形控制规律分析
曹成勇1,施成华1,彭立敏12,郑泽源3

(1.中南大学土木工程学院,湖南长沙410075;
2.高速铁路建造技术国家工程实验室,湖南长沙410075;
3.国网福建省电力有限公司泉州供电公司,福建泉州362000
)

摘 要: 为了分析地表注浆对隧道邻近建筑物变形控制规律,采用有限元数值模拟方法,从不同层高、与隧道中心线成不同角度、离隧道不同距离等3 方面探讨地表注浆加固对建筑物的变形控制规律。研究结果表明: 注浆加固对距离隧道中线1 ~ 1.5倍开挖跨度范围内地表的沉降控制起到了显著的作用。建筑物与隧道间距离是影响地表注浆加固控制建筑物变形效果的主要因素。建筑物层高越高,距离隧道越远,注浆对周围建筑物作用效果越不明显; 随着建筑物与隧道所成角度的增大,作用效果反而越明显。

 

关键字: 地表注浆; 隧道; 邻近建筑物; 变形控制规律

Analysis of deformation controlling law for buildings nearby tunnels with grouting from the ground surface
CAO Chengyong1,SHI Chenghua1,PENG Limin12,ZHENG Zeyuan3

1.School of Civil Engineering,Central South University,Changsha 410075,China;
2.National Engineering Laboratory of High-speed Railway Construction,Changsha 410075,China;
3.Quanzhou Power Supply Company of State Grid Fujian Electric Power Co.Ltd.,Quanzhou 362000,China

Abstract:To analyze deformation controlling law of buildings nearby tunnels with grouting from the ground surface,the finite element numerical simulation method was used to discuss it in terms of different height,different angles and distance between tunnel central line and buildings.The results show that grouting reinforcement plays a significant role in controlling the subsidence of surface,when buildings are 1-1.5 times excavation span distance away from tunnel central line.The distance between buildings and tunnels is the main factor in controlling building deformatia effect.The higher the buildings and the further distance between buildings and tunnels,the less effect of grouting on surrounding buildings.In addition with the increase of the angle between buildings and tunnels,the effect of grouting reinforcement is in turn more obvious.

 

Key words: grouting from the ground surface; tunnel; adjacent buildings; deformation controlling law

ISSN 1672-7029
CN 43-1423/U

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